US20050115732A1 - Screw cap for a portable electronic device - Google Patents
Screw cap for a portable electronic device Download PDFInfo
- Publication number
- US20050115732A1 US20050115732A1 US10/921,705 US92170504A US2005115732A1 US 20050115732 A1 US20050115732 A1 US 20050115732A1 US 92170504 A US92170504 A US 92170504A US 2005115732 A1 US2005115732 A1 US 2005115732A1
- Authority
- US
- United States
- Prior art keywords
- groove
- screw cap
- head
- cylindrical body
- main body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000000717 retained effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0004—Casings, cabinets or drawers for electric apparatus comprising several parts forming a closed casing
- H05K5/0008—Casings, cabinets or drawers for electric apparatus comprising several parts forming a closed casing assembled by screws
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/081—Bases, casings or covers
- H02G3/083—Inlets
Definitions
- the present invention generally relates to screw caps that cover heads of screws, and more particularly to screw caps for portable electronic devices.
- the invention relates to a contemporarily filed application titled “EXPANDABLE SCREW COVER” and having the same assignee with the instant invention.
- a portable electronic device such as a mobile phone
- the head of each screw is conventionally exposed at an outer surface of the housing. This detracts from the aesthetic appearance of the mobile phone. Therefore in more recent times, manufacturers have configured a motherboard to be attached to a first half-shell of a housing of the mobile phone with screws, with a second half-shell of the housing being attached to the first half-shell by other means such as snap-fitting. In this way, the heads of the screws are hidden within the housing.
- ERICSSON's mobile phone model no. T68 adopts the above-mentioned newer type of securing means.
- the caps have to be removed from the housing one by one, which is very laborious. Moreover, because the caps are made of soft plastic, they are easily damaged and distorted during normal use of the portable electronic device. This not only reduces their aesthetic appearance, but can also make disassembly more difficult and inconvenient.
- an object of the present invention is to provide a screw cap for a portable electronic device which enables the portable electronic device to be conveniently assembled and disassembled.
- a screw cap for a portable electronic device of the present invention comprises a main body and an elastic ring.
- the main body comprises a head located a top thereof, and a cylindrical body adjoining a bottom of the head.
- An outer diameter of the cylindrical body is less than an outer diameter of the head.
- a first groove and a second groove are defined in circumferential surface of the cylindrical body. The first groove is near a top of the cylindrical body, and is deeper than the second groove.
- FIG. 1 is an exploded, isometric view of a screw cap of a portable electronic device in accordance with a preferred embodiment of the present invention
- FIG. 2 is an isometric, cut-away view of part of a housing of a portable electronic device that utilizes the screw cap of FIG. 1 ;
- FIG. 3 is similar to FIG. 2 , but showing the screw cap of FIG. 1 attached in the housing in a first position;
- FIG. 4 is similar to FIG. 3 , but showing the screw cap accommodated in the housing in a second position.
- a screw cap of a portable electronic device in accordance with the preferred embodiment of the present invention comprises a main body 12 and an elastic ring 14 that has a gap (not labeled) therein.
- the main body 12 includes a head 122 and a cylindrical body 124 .
- the head 122 is located at the top of the main body 12 , with the cylindrical body 124 adjoining a bottom of the head 122 .
- the head 122 and the cylindrical body 124 can be integrally formed together at the same time.
- An outer diameter of the cylindrical body 124 is less than an outer diameter of the head 122 .
- An upper first groove 1242 and a lower second groove 1243 are respectively defined in a circumferential surface of the cylindrical body 124 .
- the first groove 1242 is near a top of the cylindrical body 124 , and is deeper than the second groove 1243 .
- a stop block 1244 is formed on the cylindrical body 124 .
- the stop block 1244 protrudes from the circumferential surface of the cylindrical body 124 below the second groove 1243 .
- the elastic ring 14 can be engaged in the first groove 1242 or the second groove 1243 , and can be taken out from the first or second grooves 1242 , 1243 by manipulating the elastic ring 14 at the gap thereof.
- an outer diameter of the elastic ring 14 is greater than the diameter of the head 122 .
- the outer diameter of the elastic ring 14 is less than the diameter of the head 122 .
- the portable electronic device utilizing the screw cap comprises a housing 2 , and a screw hole 20 defined in the housing 2 .
- the screw hole 20 is stepped, and thereby comprises an upper portion 202 and a lower portion 204 .
- a diameter of the upper portion 202 is greater than a diameter of the lower portion 204 .
- the diameter of the upper portion 202 is slightly greater than the diameter of the head 122 , so that the head 122 can be fittingly received in the upper portion 202 .
- the diameter of the lower portion 204 is slightly greater than the diameter of the cylindrical body 124 , so that the cylindrical body 124 can be fittingly received in the lower portion 204 .
- An annular supporting step 206 is defined at the junction of the upper portion 202 and the lower portion 204 .
- a vertical sliding groove 207 is defined in an inner wall of the housing 2 at the lower portion 204 , with a top extremity of the sliding groove 207 being at the supporting step 206 .
- a stop step 208 is defined at a bottom of the sliding groove 207 .
- the stop block 1244 of the cylindrical body 124 can slide in the sliding groove 207 and can be stopped by the stop step 208 .
- the outer diameter of the elastic ring 14 in an uncompressed state in the second groove 1243 is slightly greater than the diameter of the upper portion 202 .
- a screw (not shown) is mounted in the screw hole 20 of the housing 2 .
- the elastic ring 14 is invaginated into the second groove 1243 of the main body 12 .
- the screw cap is then inserted into the screw hole 20 .
- the head 122 is pressed down.
- the main body 12 slides into the screw hole 20 , with the elastic ring 14 interferentially sliding down along the upper portion 202 , and the stop block 1244 sliding down in the sliding groove 207 .
- the head 122 is thus pressed until a top face thereof is level with or lower than a top face of the housing 2 .
- This position can be attained because a distance between the second groove 1243 and the top face of the head 122 is less than a depth of the upper portion 202 of the screw hole 20 .
- the outer diameter of the elastic ring 14 in the uncompressed state in the second groove 1243 is slightly greater than the diameter of the upper portion 202 , the screw cap is tightly fixed in the screw hole 20 .
- the head 122 in disassembly, the head 122 is pressed down.
- the elastic ring 14 slides with the main body 12 in the upper portion 202 toward the supporting step 206 . Because the outer diameter of the elastic ring 14 in the second groove 1243 is greater than the diameter of the lower portion 204 of the screw hole 20 , the elastic ring 14 is stopped by the supporting step 206 .
- the cylindrical body 124 interferentially slides down through the elastic ring 14 .
- the elastic ring 14 is disengaged from the second groove 1243 , and moves relative to the cylindrical body 124 until it eventually engages in the first groove 1242 .
Abstract
Description
- 1. Field of the Invention
- The present invention generally relates to screw caps that cover heads of screws, and more particularly to screw caps for portable electronic devices. The invention relates to a contemporarily filed application titled “EXPANDABLE SCREW COVER” and having the same assignee with the instant invention.
- 2. Prior Art
- Nowadays, major parts of a portable electronic device such as a mobile phone are generally attached together with screws. Where one of the parts is the housing of the mobile phone, the head of each screw is conventionally exposed at an outer surface of the housing. This detracts from the aesthetic appearance of the mobile phone. Therefore in more recent times, manufacturers have configured a motherboard to be attached to a first half-shell of a housing of the mobile phone with screws, with a second half-shell of the housing being attached to the first half-shell by other means such as snap-fitting. In this way, the heads of the screws are hidden within the housing. For example, ERICSSON's mobile phone model no. T68 adopts the above-mentioned newer type of securing means.
- However, assembly of the above-mentioned new kind of portable electronic device is much more complicated than assembly of the more conventional, less aesthetic type of portable electronic device. Therefore, some modem portable electronic devices still adopt securing of an upper cover to a lower cover thereof with screws. In addition, a cylindrical cap made of soft plastic is engaged in each screw hole so that it covers the screw head. The diameter of the cap is slightly larger than the diameter of the screw hole, so that the cap interferentially fits in the screw hole and does not fall out. For example, SAMSUNG's mobile phone model no. N188 adopts this type of aesthetic securing means. However, in disassembly, a hard, sharp tool needs to be inserted between the cap and the housing. The caps have to be removed from the housing one by one, which is very laborious. Moreover, because the caps are made of soft plastic, they are easily damaged and distorted during normal use of the portable electronic device. This not only reduces their aesthetic appearance, but can also make disassembly more difficult and inconvenient.
- Therefore, a screw cap for a portable electronic device which overcomes the above-described disadvantages is desired.
- Accordingly, an object of the present invention is to provide a screw cap for a portable electronic device which enables the portable electronic device to be conveniently assembled and disassembled.
- To achieve the above-mentioned object, a screw cap for a portable electronic device of the present invention comprises a main body and an elastic ring. The main body comprises a head located a top thereof, and a cylindrical body adjoining a bottom of the head. An outer diameter of the cylindrical body is less than an outer diameter of the head. A first groove and a second groove are defined in circumferential surface of the cylindrical body. The first groove is near a top of the cylindrical body, and is deeper than the second groove. When the elastic ring is engaged in the second groove, the screw cap can be interferentially engaged in a screw hole of a housing of the portable electronic device. When the screw cap is pushed so that the elastic ring is engaged in the first groove, the screw cap can be easily removed from the screw hole.
- Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which:
-
FIG. 1 is an exploded, isometric view of a screw cap of a portable electronic device in accordance with a preferred embodiment of the present invention; -
FIG. 2 is an isometric, cut-away view of part of a housing of a portable electronic device that utilizes the screw cap ofFIG. 1 ; -
FIG. 3 is similar toFIG. 2 , but showing the screw cap ofFIG. 1 attached in the housing in a first position; and -
FIG. 4 is similar toFIG. 3 , but showing the screw cap accommodated in the housing in a second position. - Referring to
FIG. 1 , a screw cap of a portable electronic device in accordance with the preferred embodiment of the present invention comprises amain body 12 and anelastic ring 14 that has a gap (not labeled) therein. Themain body 12 includes ahead 122 and acylindrical body 124. Thehead 122 is located at the top of themain body 12, with thecylindrical body 124 adjoining a bottom of thehead 122. Thehead 122 and thecylindrical body 124 can be integrally formed together at the same time. An outer diameter of thecylindrical body 124 is less than an outer diameter of thehead 122. An upperfirst groove 1242 and alower second groove 1243 are respectively defined in a circumferential surface of thecylindrical body 124. Thefirst groove 1242 is near a top of thecylindrical body 124, and is deeper than thesecond groove 1243. Astop block 1244 is formed on thecylindrical body 124. Thestop block 1244 protrudes from the circumferential surface of thecylindrical body 124 below thesecond groove 1243. Theelastic ring 14 can be engaged in thefirst groove 1242 or thesecond groove 1243, and can be taken out from the first orsecond grooves elastic ring 14 at the gap thereof. When theelastic ring 14 is engaged in thesecond groove 1243, an outer diameter of theelastic ring 14 is greater than the diameter of thehead 122. When theelastic ring 14 is engaged in thefirst groove 1242, the outer diameter of theelastic ring 14 is less than the diameter of thehead 122. - Referring to
FIG. 2 , the portable electronic device utilizing the screw cap comprises ahousing 2, and ascrew hole 20 defined in thehousing 2. Thescrew hole 20 is stepped, and thereby comprises anupper portion 202 and alower portion 204. A diameter of theupper portion 202 is greater than a diameter of thelower portion 204. The diameter of theupper portion 202 is slightly greater than the diameter of thehead 122, so that thehead 122 can be fittingly received in theupper portion 202. The diameter of thelower portion 204 is slightly greater than the diameter of thecylindrical body 124, so that thecylindrical body 124 can be fittingly received in thelower portion 204. An annular supportingstep 206 is defined at the junction of theupper portion 202 and thelower portion 204. A verticalsliding groove 207 is defined in an inner wall of thehousing 2 at thelower portion 204, with a top extremity of thesliding groove 207 being at the supportingstep 206. Astop step 208 is defined at a bottom of thesliding groove 207. Thestop block 1244 of thecylindrical body 124 can slide in thesliding groove 207 and can be stopped by thestop step 208. In addition, the outer diameter of theelastic ring 14 in an uncompressed state in thesecond groove 1243 is slightly greater than the diameter of theupper portion 202. - Referring also to
FIG. 3 , in assembly, a screw (not shown) is mounted in thescrew hole 20 of thehousing 2. Theelastic ring 14 is invaginated into thesecond groove 1243 of themain body 12. The screw cap is then inserted into thescrew hole 20. Thehead 122 is pressed down. Themain body 12 slides into thescrew hole 20, with theelastic ring 14 interferentially sliding down along theupper portion 202, and thestop block 1244 sliding down in the slidinggroove 207. Thehead 122 is thus pressed until a top face thereof is level with or lower than a top face of thehousing 2. This position can be attained because a distance between thesecond groove 1243 and the top face of thehead 122 is less than a depth of theupper portion 202 of thescrew hole 20. In addition, because the outer diameter of theelastic ring 14 in the uncompressed state in thesecond groove 1243 is slightly greater than the diameter of theupper portion 202, the screw cap is tightly fixed in thescrew hole 20. - Referring to
FIG. 4 , in disassembly, thehead 122 is pressed down. Theelastic ring 14 slides with themain body 12 in theupper portion 202 toward the supportingstep 206. Because the outer diameter of theelastic ring 14 in thesecond groove 1243 is greater than the diameter of thelower portion 204 of thescrew hole 20, theelastic ring 14 is stopped by the supportingstep 206. When thehead 122 is continued to be pressed, thecylindrical body 124 interferentially slides down through theelastic ring 14. Thus theelastic ring 14 is disengaged from thesecond groove 1243, and moves relative to thecylindrical body 124 until it eventually engages in thefirst groove 1242. In this position, because the outer diameter of theelastic ring 14 in thefirst groove 1242 is less than the diameter of thehead 122, the screw cap is in no longer tightly fixed in thescrew hole 20. The portable electronic device is then inverted, so that the screw cap drops out from thescrew hole 20. - It is believed that the present invention and its advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the invention or sacrificing all of its material advantages. The examples hereinbefore described are merely preferred or exemplary embodiments of the invention.
Claims (17)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2003201188369U CN2694026Y (en) | 2003-11-29 | 2003-11-29 | Screw cap for portable electronic device and portable electronic device using the same |
CN2003201188369 | 2003-11-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20050115732A1 true US20050115732A1 (en) | 2005-06-02 |
US7565984B2 US7565984B2 (en) | 2009-07-28 |
Family
ID=34599560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/921,705 Expired - Fee Related US7565984B2 (en) | 2003-11-29 | 2004-08-18 | Screw cap for a portable electronic device |
Country Status (2)
Country | Link |
---|---|
US (1) | US7565984B2 (en) |
CN (1) | CN2694026Y (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100040314A1 (en) * | 2008-08-17 | 2010-02-18 | Ming-Yao Lin | Linear Guideway |
US20100163566A1 (en) * | 2008-12-31 | 2010-07-01 | Shenzhen Futaihong Precision Industry Co., Ltd. | Screw protection cover and shell assembly using the same |
US20100203362A1 (en) * | 2006-12-12 | 2010-08-12 | Lan Trieu Lam | Energy storage device |
US20130273819A1 (en) * | 2010-12-29 | 2013-10-17 | Xinchun Lu | Wafer transfer device for chemical mechanical polishing apparatus |
US8985925B2 (en) | 2011-08-03 | 2015-03-24 | Wistron Corporation | Insert nut structure, nut and shell assembly and method for assembling nut and shell assembly |
USD752839S1 (en) * | 2013-11-04 | 2016-03-29 | Deep Wood Brew Products, LLC | Mini-keg growler neck without cap |
US9428720B2 (en) | 2013-11-08 | 2016-08-30 | Deep Wood Brew Products, LLC | Mini-keg growler |
CN113365450A (en) * | 2020-03-06 | 2021-09-07 | 和硕联合科技股份有限公司 | Fastening assembly and electronic device thereof |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104948560A (en) * | 2014-03-26 | 2015-09-30 | 广州豹驰汽配有限公司 | Device for fixing and protecting hub nut |
CN104373449B (en) * | 2014-11-06 | 2016-05-25 | 海盐哈特惠机械五金制品有限公司 | A kind of multi-functional Anti-loosing screw cap |
CN106523500A (en) * | 2016-10-24 | 2017-03-22 | 无锡市明骥智能机械有限公司 | Multifunctional bolt |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US844400A (en) * | 1904-12-09 | 1907-02-19 | Christian Radbruch | Bottle-stopper. |
US2674390A (en) * | 1950-03-31 | 1954-04-06 | Leer S Curacao N V Van | Joint or closure |
US2674472A (en) * | 1949-02-17 | 1954-04-06 | Leer S Curacao N V Van | Joint |
US3599820A (en) * | 1969-07-22 | 1971-08-17 | Univ Kentucky Res Found | High vacuum-sealing closure |
US3874541A (en) * | 1971-02-24 | 1975-04-01 | Saint Gobain | Bottle stopper |
US4515283A (en) * | 1981-11-13 | 1985-05-07 | Hiro Suzuki | Bung for jars |
US5944208A (en) * | 1998-01-26 | 1999-08-31 | Gale; Gregory W. | Customized bottle and closure therefor |
-
2003
- 2003-11-29 CN CNU2003201188369U patent/CN2694026Y/en not_active Expired - Fee Related
-
2004
- 2004-08-18 US US10/921,705 patent/US7565984B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US844400A (en) * | 1904-12-09 | 1907-02-19 | Christian Radbruch | Bottle-stopper. |
US2674472A (en) * | 1949-02-17 | 1954-04-06 | Leer S Curacao N V Van | Joint |
US2674390A (en) * | 1950-03-31 | 1954-04-06 | Leer S Curacao N V Van | Joint or closure |
US3599820A (en) * | 1969-07-22 | 1971-08-17 | Univ Kentucky Res Found | High vacuum-sealing closure |
US3874541A (en) * | 1971-02-24 | 1975-04-01 | Saint Gobain | Bottle stopper |
US4515283A (en) * | 1981-11-13 | 1985-05-07 | Hiro Suzuki | Bung for jars |
US5944208A (en) * | 1998-01-26 | 1999-08-31 | Gale; Gregory W. | Customized bottle and closure therefor |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100203362A1 (en) * | 2006-12-12 | 2010-08-12 | Lan Trieu Lam | Energy storage device |
US20100040314A1 (en) * | 2008-08-17 | 2010-02-18 | Ming-Yao Lin | Linear Guideway |
US20100163566A1 (en) * | 2008-12-31 | 2010-07-01 | Shenzhen Futaihong Precision Industry Co., Ltd. | Screw protection cover and shell assembly using the same |
US8517210B2 (en) * | 2008-12-31 | 2013-08-27 | Shenzhen Futaihong Precision Industry Co., Ltd. | Screw protection cover and shell assembly using the same |
US20130273819A1 (en) * | 2010-12-29 | 2013-10-17 | Xinchun Lu | Wafer transfer device for chemical mechanical polishing apparatus |
US8985925B2 (en) | 2011-08-03 | 2015-03-24 | Wistron Corporation | Insert nut structure, nut and shell assembly and method for assembling nut and shell assembly |
USD752839S1 (en) * | 2013-11-04 | 2016-03-29 | Deep Wood Brew Products, LLC | Mini-keg growler neck without cap |
US9428720B2 (en) | 2013-11-08 | 2016-08-30 | Deep Wood Brew Products, LLC | Mini-keg growler |
CN113365450A (en) * | 2020-03-06 | 2021-09-07 | 和硕联合科技股份有限公司 | Fastening assembly and electronic device thereof |
Also Published As
Publication number | Publication date |
---|---|
CN2694026Y (en) | 2005-04-20 |
US7565984B2 (en) | 2009-07-28 |
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Legal Events
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AS | Assignment |
Owner name: FIH CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TU, YING LIANG;TAN, XIAO YU;REEL/FRAME:015717/0396 Effective date: 20040112 |
|
AS | Assignment |
Owner name: SHENZHEN FUTAIHONG PRECISION INDUSTRIAL CO., LTD., Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FIH CO., LTD.;REEL/FRAME:018614/0482 Effective date: 20061116 Owner name: SUTECH TRADING LIMITED., VIRGIN ISLANDS, BRITISH Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FIH CO., LTD.;REEL/FRAME:018614/0482 Effective date: 20061116 |
|
AS | Assignment |
Owner name: FIH (HONG KONG) LIMITED, HONG KONG Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SUTECH TRADING LIMITED;REEL/FRAME:022603/0180 Effective date: 20090317 |
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REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
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FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20130728 |